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(parent: 4485923) | patch
serial: 8250_aspeed_vuart: Fix potential NULL dereference in aspeed_vuart_probe
authorMiaoqian Lin <linmq006@gmail.com>
Mon, 4 Apr 2022 14:38:40 +0000 (14:38 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 15 Apr 2022 09:31:29 +0000 (11:31 +0200)
commitdd5cb6284920ba228dbdda00e0add779602b432f
tree16de6badb9260a79ae1989599db4cfc408e600d7tree | snapshot
parent44859233b29e44873484bac0c20967098147c15dcommit | diff
serial: 8250_aspeed_vuart: Fix potential NULL dereference in aspeed_vuart_probe

platform_get_resource() may fail and return NULL, so we should
better check it's return value to avoid a NULL pointer dereference.

Fixes: 8a149bc2cd23 ("serial: 8250_aspeed_vuart: use UPF_IOREMAP to set up register mapping")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220404143842.16960-1-linmq006@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/8250/8250_aspeed_vuart.c diff | blob | history
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